Practice IB Design Technology (DT) Topic 3.2 Graphical Modelling with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for 3.2 Graphical Modelling and mirrors Paper 1, 2, 3 style where relevant.
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The design of a car is a process that has many stages. As a result, there can be a large number of prototypes and drawings used.
Some car designers are still using clay to make their first prototype of a new model of car, see figure below.
Explain why digital humans are used in car interior design.
Outline why isometric drawings are often used in car design.
Describe the difference between surface and solid modelling.
List one reason why clay modelling is still used to prototype models in processes such as car design.
In graphical modelling, which type of drawing is used to represent a three-dimensional object where the height and width are shown at full scale, and the depth is represented on a -degree angle to the horizontal?
The Gramovox® bluetooth speaker design is based on gramophones from the 1920s, see Figure 13. For the prototype, stereolithography (SLA) was used to 3D print the S-curve horn.
Pavan Bapu the founder of Gramovox®, is an entrepreneur and a product champion, see Figure 14. He crowdsourced funding for manufacture through Kickstarter and promoted the concept through live online broadcasts and newspaper interviews. He was inspired to develop the Gramovox® bluetooth speaker after seeing a 1920s gramophone in a shop window.
Figure 13: Gramovox, 2013. Gramovox Bluetooth Gramophone.
Available at: https://www.kickstarter.com/projects/gramovox/gramovoxtm-bluetooth-gramophone
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Figure 14: Technori, 2015. Pavan Bapu Presents Gramovox. Available at: https://www.youtube.com/watch?v=-Mp5m8klziA
. Source adapted.
Outline one physical property that makes hardwood a suitable choice for the base of the Gramovox® bluetooth speaker in Figure 13.
Explain the benefit of using freehand sketches, physical models and CAD solid models in the development of the horn of the Gramovox® bluetooth speaker.
Explain Pavan Bapu’s role as entrepreneur and product champion in the success of the Gramovox® bluetooth speaker.
Explain how retro-styling has been used in the design of the Gramovox® bluetooth speaker.
Which graphical modelling technique relies on one or more vanishing points to simulate how a product is perceived by the human eye, emphasizing visual realism over dimensional accuracy?
Graphical models serve various purposes for engineers, manufacturers, designers, and clients, with their use depending on the context.
Which of the following graphical models is best suited for presenting an architectural design to a client?